Compaq AA-RHGWB-TE manual Setting the TL891 or TL892 Scsi ID

8.6Preparing the TL891 and TL892 DLT MiniLibraries for Shared SCSI Usage

______________________ Note _______________________

To achieve system performance capabilities, we recommend placing no more than two TZ89 drives on a SCSI bus, and also recommend that no shared storage be placed on the same SCSI bus with a tape library.

The TL891 and TL892 MiniLibraries use one (TL891) or two (TL892) TZ89N-AV differential tape drives and a robotics controller, which access cartridges in a 10-cartridge magazine.

Each tape drive present, and the robotics controller, have individual SCSI IDs.

There are six 68-pin, high-density SCSI connectors located on the back of the MiniLibrary; two SCSI connectors for each drive and two for the robotics controller. The TL891 uses a 0.3-meter SCSI bus jumper cable (part of the TL891 package) to place the robotics controller and tape drive on the same SCSI bus. When upgrading to the TL892, you can place the second drive on the same SCSI bus (another 0.3-meter SCSI bus jumper cable is supplied with the DS-TL892-UA upgrade kit) or place it on its own SCSI bus.

The following sections describe how to prepare the TL891 and TL892 in more detail.

8.6.1 Setting the TL891 or TL892 SCSI ID

The control panel on the front of the TL891 and TL892 MiniLibraries is used to display power-on self-test (POST) status, display messages, and to set up MiniLibrary functions.

When power is first applied to a MiniLibrary, a series of POST diagnostics are performed. During POST execution, the MiniLibrary model number, current date and time, firmware revision, and the status of each test is displayed on the control panel.

After the POST diagnostics have completed, the default screen is shown:

DLT0 Idle

DLT1 Idle Loader Idle

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8–18Configuring a Shared SCSI Bus for Tape Drive Use